It is generally acknowledged that the most cost-effective means of curtailing alcohol and drug abuse is prevention. Providing interventions to at-risk individuals before they develop serious problems with substance use is the most important component of the "war on drugs." Fortunately, the past decade has seen a dramatic increase in the quantity and quality of scientific research on those areas crucial to the advancement of prevention science. This book compiles a tremendous amount of information about prevention which has accumulated in recent years. Documenting these accomplishments and setting the stage for future efforts comprise the focus of this book. Prevention and Societal Impact of Drug and Alcohol Abuse is divided into four parts. Part I contains introductory chapters addressing current issues in prevention science and characteristics of abusable substances. Part II includes chapters on the historical contexts of substance abuse and the deleterious health consequences of alcohol and other drugs. Part III focuses on the impact of drug and alcohol abuse on society. Included are chapters on alcohol and drug abuse and driving, infectious illness, disability, managed care, the criminal justice system and adolescents and adults, sale and distribution, the media, and community responses. Part IV consists of chapters on prevention in specific settings and with certain populations.